|
| year | consumption | change |
| 1984 | 76.35 | NA |
| 1985 | 82.79 | 8.44 % |
| 1986 | 99.21 | 19.84 % |
| 1987 | 105.13 | 5.96 % |
| 1988 | 99.26 | -5.58 % |
| 1989 | 83.65 | -15.73 % |
| 1990 | 81.67 | -2.37 % |
| 1991 | 94.21 | 15.36 % |
| 1992 | 182.02 | 93.20 % |
| 1993 | 184.56 | 1.40 % |
| 1994 | 146.72 | -20.50 % |
| 1995 | 125.15 | -14.70 % |
| 1996 | 118.30 | -5.47 % |
| 1997 | 120.17 | 1.57 % |
| 1998 | 121.68 | 1.26 % |
| 1999 | 122.21 | 0.43 % |
| 2000 | 119.30 | -2.38 % |
| 2001 | 128.03 | 7.32 % |
| 2002 | 112.11 | -12.44 % |
| 2003 | 116.39 | 3.82 % |
| 2004 | 120.78 | 3.76 % |
| 2005 | 121.60 | 0.68 % |
| 2006 | 123.53 | 1.59 % |
| 2007 | 121.36 | -1.76 % |
| 2008 | 120.01 | -1.11 % |
| 2009 | 124.39 | 3.64 % |
| 2010 | 141.85 | 14.04 % |
|
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